Computers and Concrete

  • 제24권3호
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  • Pages.223-236
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  • 2019
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  • 1598-8198(pISSN)
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  • 1598-818X(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Simulation of cyclic response of precast concrete beam-column joints

  • Adibi, Mahdi (School of Civil Engineering, College of Engineering, University of Bojnord) ;
  • Talebkhah, Roozbeh (School of Civil Engineering, College of Engineering, University of Bojnord) ;
  • Yahyaabadi, Aliakbar (School of Civil Engineering, College of Engineering, University of Bojnord)
  • 투고 : 2019.03.07
  • 심사 : 2019.06.20
  • 발행 : 2019.09.25
⟨ 이전 논문 다음 논문 ⟩

초록

Experience of previous earthquakes shows that a considerable portion of concrete precast buildings sustain relatively large damages especially at the beam-column joints where the damages are mostly caused by bar slippage. Precast concrete buildings have a kind of discontinuity in their beam-column joints, so reinforcement details in this area is too important and have a significant effect on the seismic behavior of these structures. In this study, a relatively simple and efficient nonlinear model is proposed to simulate pre- and post-elastic behavior of the joints in usual practice of precast concrete building. In this model, beam and column components are represented by linear elastic elements, dimensions of the joint panel are defined by rigid elements, and effect of slip is taken into account by a nonlinear rotational spring at the end of the beam. The proposed method is validated by experimental results for both internal and external joints. In addition, the seismic behavior of the precast building damaged during Bojnord earthquake 13 May 2017, is investigated by using the proposed model for the beam-column joints. Damage unexpectedly inducing the precast building in the moderate Bojnord earthquake may confirm that bearing capacity of the precast building was underestimated without consideration of joint behavior effect.

키워드

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피인용 문헌

  1. Numerical Study of RC Beam-Column Joints Using a 4-Node Lattice Element Analysis Method vol.25, pp.3, 2019, https://doi.org/10.1007/s12205-021-0991-z